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you can use a mirror
a flashlight
a radio
to send Morse Code
radio can be received in all directions and easily tracked
mirror can be seen from may locations
flashlight can be focused
Ir flashlight can be used and focused exactly the same way
but you can only see it with special equipment, so it will make you position more secure
What else can I help you with?
What is infra violet?
Infrared (IR) radiation is a type of electromagnetic radiation with longer wavelengths than visible light. It is commonly used in applications such as heat therapy, night vision technology, and remote controls.
Why do watches give off radiations?
Some watches may emit low levels of radiation from the small amount of radioactive material used in luminous dials or hands, such as tritium. This radiation is typically very low and considered safe for everyday use. However, newer watches with LED or electronic displays do not emit radiation.
What is a sentence using signal mirror?
I hear a helicopter; grab my signal mirror! I am looking for the signal mirror now.
What are five examples of electromagnetic waves?
-- radio signal -- TV signal -- GPS signal -- cellphone signal -- smartphone signal -- 'smart-meter' electric meter signal -- garage-door opener signal -- TV 'remote' signal -- sunshine -- microwave communication signal -- microwave energy to heat meatloaf -- heat from a toaster -- heat from a campfire -- red light -- yellow light -- blue light -- ultraviolet 'black' light -- X-rays -- gamma rays
What is the purpose of spectrum analyzer?
A spectrum analyzer is used to analyze and visualize the frequency content of a signal. It helps in identifying the presence of specific frequencies, measuring signal strength, and detecting interference or noise in the signal. Spectrum analyzers are commonly used in various industries such as telecommunications, audio engineering, and electronics for troubleshooting and signal analysis.
What type of waves are used in night vision?
Infra red radiation is the best. Usually living bodies would emit IR radiations which could be seen through IR spectroscope or telescope. Though IR are not visible to our eyes those can be recorded on suitable films.
What is infra red used for?
cleaning toilets
What is a advantages of uranium rays?
Uranium is not used for the radiations emitted.
What kind of radiations are used when foods preservedby irradiation?
Gamma.
Which radiations are used to prevent sprouting of onions or potatoes?
beta
Can infra red be used with water born paint?
Yes. It can.
Which rays are used to take photographs in dark?
infra red
What code was used by George Washington during the Revolutionary War?
it was a unbreakable code used to signal the other soldiers
What does the prefix infra mean?
The prefix "infra-" means below or beneath. It is commonly used in words to indicate something that is situated underneath or lies below.
What indicates an emergency signal onboard a boat?
An upside down flag is generally recognized as a signal of distress, and should be used only during an emergency.
Which rays used for telecommunication?
radio waves, microwaves, infra red
What are the side effects of radioactive tracers used for sentinel node biopsy?
toxicity the radiations are ionising radiations. they cause ionisation in the body and causes free radical formation.
